// Debug script to test different approaches for quadrant charts
export const code = async (inputs) => {
  const raw = String(inputs.diagram || "").trim();
  if (!raw) throw new Error("No Mermaid input provided");
  
  // Normalize line endings first
  let normalizedDiagram = raw
    .replace(/\r\n/g, '\n')  // Convert Windows line endings
    .replace(/\r/g, '\n');   // Convert old Mac line endings
  
  console.log("Original diagram:");
  console.log(normalizedDiagram);
  
  // Check if it's already single line
  if (!normalizedDiagram.includes('\n')) {
    console.log("Already single line, returning as-is");
    return { rawDsl: normalizedDiagram };
  }
  
  // For quadrant charts, try different encoding methods
  const firstWord = normalizedDiagram.split(/\s+/)[0];
  
  if (firstWord === 'quadrantChart') {
    console.log("Quadrant chart detected - trying special encoding methods");
    
    // Method 1: Try different newline encoding
    const method1 = normalizedDiagram.replace(/\n/g, '\\n');
    console.log("Method 1 (\\n encoding):", method1);
    
    // Method 2: Try different marker
    const method2 = normalizedDiagram.replace(/\n/g, ' | ');
    console.log("Method 2 (pipe separator):", method2);
    
    // Method 3: Try preserving original with different content-type hint
    const method3 = `PRESERVE_NEWLINES:${normalizedDiagram}`;
    console.log("Method 3 (preserve hint):", method3);
    
    // Let's try method 2 first (pipe separator)
    return { rawDsl: method2 };
  }
  
  // Convert other types to single line with semicolons
  const convertibleTypes = ['graph', 'flowchart', 'sequenceDiagram', 'pie', 'gitGraph'];
  
  if (convertibleTypes.some(type => firstWord.startsWith(type))) {
    const lines = normalizedDiagram.split('\n');
    const firstLine = lines[0];
    const remainingLines = lines.slice(1)
      .filter(line => line.trim())
      .map(line => line.trim());
    
    const singleLine = firstLine + '; ' + remainingLines.join('; ');
    console.log("Converted to single line:");
    console.log(singleLine);
    
    return { rawDsl: singleLine };
  }
  
  // For other non-convertible types, use NEWLINE encoding
  const encodedDiagram = normalizedDiagram.replace(/\n/g, ' NEWLINE ');
  console.log("Using NEWLINE encoding:");
  console.log(encodedDiagram);
  
  return { rawDsl: encodedDiagram };
};